判断 - if df.empty: - Data Frame 是否为空

判断dataFrame是否为空

import numpy as np
import pandas as pd
df = pd.DataFrame(data=[{"A":"one", "B":"1", "C":"yi"}, {"A":"two", "B":"2", "C":"er"}])
if df.empty:
    print("空的")
else:
    print("非空的")

import numpy as np
import pandas as pd
df = pd.DataFrame(data=[{"A":"one", "B":"1", "C":"yi"}, {"A":"two", "B":"2", "C":"er"}])
if df.empty == False:
    # 有内容到
    print("非空的")
else:
    print("空的")

写方法的时候都是try except 那样写，但是还不够，有可能会遇到传过来的df是空的，那么就要使用这种方法